Client-side Libraries

Validate.js provides a declarative way of validating javascript objects. It is unit tested with 100% code coverage and can be considered fit for production.

Simple, lightweight model-based validation for Vue.js

Parsley, the ultimate frontend javascript form validation library

The best validation library for JavaScript. No dependency. Supports popular frameworks including Bootstrap, Zurb Foundation, Pure, Semantic, UIKit, Bulma, spectre, Shoelace